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Home My WebLink AboutSW1080103_Inspection Report_20100922ILE t�vi 1 A� r NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor October 20, 2010 Division of Water Quality Coleen H. Sullins Director Mr. Bill Parker, Assistant Superintendent for Administrative Services Henderson County Schools 414 Fourth Avenue West Hendersonville, NC 28739 SUBJECT: Hillandale Elementary School Stormwater BMP Inspection DWQ Permit Number: SW1080103 Henderson County Dear Mr. Parker: Dee Freeman Secretary On September 22, 2010, Susan A. Wilson and Chuck Cranford, from the Asheville Regional Office of the Division of Water Quality (DWQ), conducted a site inspection for the stormwater controls at Mills River Elementary School. Some issues were noted during the inspection and file review and are outlined in the attached inspection report. Please contact this office in writing after the issues have been reviewed and/or resolved (this should be done by December 10, 2010). The original Operation and Maintenance agreement was signed by Mr. Bo Caldwell and has been attached for your review. DWQ reminds you that the stormwater controls are to be inspected, at minimum, once a month and within 24 hours after every storm event greater than 1.0 inches. Records for inspection and maintenance should be kept in a known/set location and must be available upon request. DWQ recommends that the eroded inlet to the forebay be fixed as soon as possible. The School's original consulting engineer/consulting firm has also been copied with this letter. The Engineer's Certification for the subject permit has not been received and should be submitted to this office. As noted in the inspection report, a level spreader appears on the approved plans but could not be located during the inspection. SURFACE WATER PROTECTION SECTION — ASHEVILLE REGIONAL OFFICE Location. 2090 U.S. Hqi way 70, Swannanoa, North Carolina 28778 Phone: 828-296-4500\ FAX: 828-299-70431 Customer Service: 1-877.623-6748 IntemeC w ncwaterquality.org An Equal Opportunity \ AKrmative Action Employer NorthCarolina Naturally Mr. Parker October 20, 2010 Page 2 of 2 Should you have any questions regarding these matters, please contact me at (828) 296-4500. Sincerely, i SKsanA. Wilson, P.E., Environmental Engineer SM Surface Water Protection Section Enc: Inspection Report r cc: ARO File Copy DWQ Central Files Douglas K. Draffen, P.E. Henderson County Planning c/o McKim and Creed 8020 Tower Point Drive Charlotte, NC 28277 S:\SWP\Hendemon\Stonnwater\5-State StortnwaterViillandale Elem\CEI.L'ITR.Hillandale River Elem SSw.10 2010.doc Compliance Inspection Report Permit: SW1080103 Effective: 05/14/08 Expiration: 05/13/18 Owner: Henderson County Schools Project: Hillandale Elementary School County: Henderson 191 Preston Ln Region: Asheville Hendersonville NC 28739 Contact Person: Brian J Dey Title: Phone: 704-841-2588 Directions to Project: From the intersection of Spartanburg Hwy. 176 and Blue Ridge Road, follow W Blue Ridge about 0.5 mile. The site will be on the left. Type of Project: State Stormwater - General Permit Drain Areas: 001 - (Bat Fork) (04-03-02) ( C) On -Site Representative(s): Related Permits: Inspection Date: 09/22/2010 Entry Time: 10:30 AM Primary Inspector: Susan A Wilson Secondary Inspector(s): Chuck Cranford Reason for Inspection: Routine Permit Inspection Type: State Stormwater Facility Status: ❑ Compliant ■ Not Compliant Question Areas: 0 State Stormwater (See attachment summary) Exit Time: 11:15 AM Phone:828-294-4500 Phone: Inspection Type: Compliance Evaluation Page: 1 Permit: SWI080103 Owner- Project: Henderson County Schools Inspection Date: 09/22/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine Inspection Summary: Susan Wilson and Chuck Cranford of the Surface Water Protection Section, in the Asheville Regional Office, conducted a site inspection at Hillandale Elementary (Henderson County Public School) on September 22, 2010. A level spreader was shown on the approved plans - but was not found on the site. Please review this situation with your design engineers. The inlet to the forebay of the basin appears severely eroded (and since it is outside of the fence, may cause a safety hazard). At this time, there does not appear to be any resultant water quality problems at the site. However, if the stormwater BMP is not properly ma�tained, problems may occur in the future. Page:2 Permit: SW1080103 Owner - Project: Henderson County Schools Inspection Date: 09/22/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine File Review Yes No NA NE Is the permit active? 0 ❑ ❑ ❑ Signed copy of the Engineers certification is in the file? ❑ 0 ❑ ❑ Signed copy of the Operation & Maintenance Agreement is in the file? ❑ ❑ ❑ Copy of the recorded deed restrictions is in the file? ❑ ❑ ❑ Comment. DWQ has no copy of the Engineer's Certificate of Completion for the project. Built Upon Area Yes No NA NE Is the site BUA constructed as per the permit and approval plans? 0 ❑ ❑ Cl Is the drainage area as per the permit and approved plans? ❑ ❑ ❑ Is the BUA (as permitted) graded such that the runoff drains to the system? ❑ ❑ ❑ Comment: The BUA appeared to be as indicated on the plans. SW Measures Yes No NA NE Are the SW measures constructed as per the approved plans? ❑ ■ ❑ ❑ Are the inlets located per the approved plans? ❑ ❑ ❑ Are the outlet structures located per the approved plans? ❑ ❑ ❑ Comment: Although the approved plans indicate a level spreader at the outlet - it was not found during inspection. Operation and Maintenance Yes No NA NE Are the SW measures being maintained and operated as per the permit requirements? ❑ M ❑ ❑ Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ ■ upon request? Comment: The inlet (near the fence) is significantly eroded. Since part Of it is outside of the fence - it could pose a significant safety hazard. It is also likely causing more sediment to be contributed to the forebay area, which may compromise the efficiency of the forebay. The school should consider trimming the vegetation (possibly 2/year) so that the inlet and outlet can be observed during inspection. Some areas outside of the fenced area (between the parking area and the basin) should be re -seeded to prevent erosion in the future. If cattails are not removed periodically - they will take over the basin and compromise efficiency. Other Permit Conditions Is the site compliant with other conditions of the permit? Vee M. NA NF ■ ■ ■ Page: 3 Permit: SW1080103 Owner- Project: Henderson County Schools Inspection Date: 09/22/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine Comment: Other WQ Issues Yes No NA NE Is the site compliant with other water quality issues as noted during the inspection? ■ ❑ ❑ ❑ Comment: No water quality problems were noted in the receiving stream during the time of inspection. Although minor issues were noted with the stormwater BMP, it appeared to be working adequately. Page:4